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BOSTON MARATHON 2025

Susan Bonthron

Bib: 25264•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
Top 47%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:02
Rank: #22525
Start → 5K
28:02 | 9:01/mi
10K· 6.21 mi
56:18
Rank: #22670 (-145)
5K → 10K
28:16 | 9:06/mi
15K· 9.32 mi
1:25:06
Rank: #22843 (-173)
10K → 15K
28:48 | 9:16/mi
20K· 12.43 mi
1:55:37
Rank: #23147 (-304)
15K → 20K
30:31 | 9:49/mi
Half· 13.11 mi
2:02:07
Rank: #23174 (-27)
20K → Half
6:30 | 9:32/mi
25K· 15.53 mi
2:26:47
Rank: #23271 (-97)
Half → 25K
24:40 | 10:10/mi
30K· 18.64 mi
2:58:17
Rank: #22994 (+277)
25K → 30K
31:30 | 10:08/mi
20M
3:11:43
Rank: #22817 (+177)
30K → 20M
13:26 | 9:53/mi
21M
3:22:10
Rank: #22648 (+169)
20M → 21M
10:27 | 10:27/mi
35K· 21.75 mi
3:29:15
Rank: #22552 (+96)
21M → 35K
7:05 | 9:28/mi
23M
3:41:50
Rank: #22429 (+123)
35K → 23M
12:35 | 10:03/mi
24M
3:51:34
Rank: #22344 (+85)
23M → 24M
9:44 | 9:44/mi
40K· 24.85 mi
4:00:22
Rank: #22301 (+43)
24M → 40K
8:48 | 10:18/mi
25.2M
4:04:11
Rank: #22276 (+25)
40K → 25.2M
3:49 | 11:04/mi
Finish· 26.22 mi
4:14:09
Rank: #22243 (+33)
25.2M → Finish
9:58 | 9:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:07
Pace9:19 /mi
2nd Half
Distance13.11 mi
Time2:12:02
Pace10:04 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:2028:029:0128:02
9:01
-
10K
6.21 mi11:56:3656:189:0428:16
9:06
+0:05
15K
9.32 mi12:25:241:25:069:0828:48
9:16
+0:10
20K
12.43 mi12:55:551:55:379:1830:31
9:49
+0:33
Half
13.11 mi13:02:252:02:079:196:30
9:32
-0:17
25K
15.53 mi13:27:052:26:479:2724:40
10:10
+0:38
30K
18.64 mi13:58:352:58:179:3431:30
10:08
-0:02
20M
20.00 mi14:12:013:11:439:3513:26
9:53
-0:15
21M
21.00 mi14:22:283:22:109:3810:27
10:27
+0:34
35K
21.75 mi14:29:333:29:159:377:05
9:28
-0:59
23M
23.00 mi14:42:083:41:509:3912:35
10:03
+0:35
24M
24.00 mi14:51:523:51:349:399:44
9:44
-0:19
40K
24.85 mi15:00:404:00:229:408:48
10:18
+0:34
25.2M
25.20 mi15:04:294:04:119:413:49
11:04
+0:46
Finish
26.22 mi15:14:274:14:099:429:58
9:47
-1:17

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

9:01 /mi

Average Pace

9:42 /mi

Slowest Pace

11:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:41

39% of race

Time at Steady Pace

1:16:14

30% of race

Time at Slower Pace

1:19:14

31% of race

Average Pace: 9:42 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:28:2028:029:0128:02
9:01
#22525
10K
6.21 mi11:56:3656:189:0428:16
9:06
#22670
15K
9.32 mi12:25:241:25:069:0828:48
9:16
#22843
20K
12.43 mi12:55:551:55:379:1830:31
9:49
#23147
Half
13.11 mi13:02:252:02:079:196:30
9:32
#23174
25K
15.53 mi13:27:052:26:479:2724:40
10:10
#23271
30K
18.64 mi13:58:352:58:179:3431:30
10:08
#22994
20M
20.00 mi14:12:013:11:439:3513:26
9:53
#22817
21M
21.00 mi14:22:283:22:109:3810:27
10:27
#22648
35K
21.75 mi14:29:333:29:159:377:05
9:28
#22552
23M
23.00 mi14:42:083:41:509:3912:35
10:03
#22429
24M
24.00 mi14:51:523:51:349:399:44
9:44
#22344
40K
24.85 mi15:00:404:00:229:408:48
10:18
#22301
25.2M
25.20 mi15:04:294:04:119:413:49
11:04
#22276
Finish
26.22 mi15:14:274:14:099:429:58
9:47
#22243
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi225258922892223115(Top 81%)9160(Top 75%)9160(Top 1468%)
10K6.21 mi3.10 mi22670-1458974-528974-5222819(Top 80%)9031(Top 74%)9031(Top 1447%)
15K9.32 mi3.11 mi22843-1739034-609034-6023115(Top 81%)9160(Top 75%)9160(Top 1468%)
20K12.43 mi3.11 mi23147-3049208-1749208-17423826(Top 84%)9617(Top 79%)9617(Top 1541%)
Half13.11 mi0.68 mi23174-279219-119219-1123648(Top 83%)9509(Top 78%)9509(Top 1524%)
25K15.53 mi2.42 mi23271-979280-619280-6123674(Top 83%)9575(Top 78%)9575(Top 1534%)
30K18.64 mi3.11 mi22994+2779184+969184+9622027(Top 78%)8789(Top 72%)8789(Top 1408%)
20M20.00 mi1.36 mi22817+1779113+719113+7120592(Top 72%)8136(Top 67%)8136(Top 1304%)
21M21.00 mi1.00 mi22648+1699029+849029+8419874(Top 70%)7845(Top 64%)7845(Top 1257%)
35K21.75 mi0.75 mi22552+968990+398990+3920263(Top 71%)8121(Top 66%)8121(Top 1301%)
23M23.00 mi1.25 mi22429+1238956+348956+3420666(Top 73%)8391(Top 69%)8391(Top 1345%)
24M24.00 mi1.00 mi22344+858931+258931+2520519(Top 72%)8359(Top 68%)8359(Top 1340%)
40K24.85 mi0.85 mi22301+438921+108921+1021367(Top 75%)8859(Top 72%)8859(Top 1420%)
25.2M25.20 mi0.35 mi22276+258912+98912+920899(Top 74%)8613(Top 70%)8613(Top 1380%)
Finish26.22 mi1.02 mi22243+338921-98921-922220(Top 78%)9275(Top 76%)9275(Top 1486%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21stories
+97ft-345ft

Overall

23115

Females

9160

F60-64

9160

5K→10K

3.1 - 6.2 mi

Top 80%
×5stories
+79ft-138ft

Overall

22819

Females

9031

F60-64

9031

10K→15K

6.2 - 9.3 mi

Top 81%
×3stories
+67ft-78ft

Overall

23115

Females

9160

F60-64

9160

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

23826

Females

9617

F60-64

9617

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

23648

Females

9509

F60-64

9509

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

23674

Females

9575

F60-64

9575

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

22027

Females

8789

F60-64

8789

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

20592

Females

8136

F60-64

8136

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

19874

Females

7845

F60-64

7845

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

20263

Females

8121

F60-64

8121

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

20666

Females

8391

F60-64

8391

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

20519

Females

8359

F60-64

8359

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21367

Females

8859

F60-64

8859

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

20899

Females

8613

F60-64

8613

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

22220

Females

9275

F60-64

9275

Passing Analysis

Category:
Athletes Passed
1699
Passed By
1417
Net Change
+282
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22525
5K → 10K186331-145#22525#22670
10K → 15K117290-173#22670#22843
15K → 20K93397-304#22843#23147
20K → Half2047-27#23147#23174
Half → 25K90187-97#23174#23271
25K → 30K32851+277#23271#22994
30K → 20M18710+177#22994#22817
20M → 21M1767+169#22817#22648
21M → 35K1026+96#22648#22552
35K → 23M13714+123#22552#22429
23M → 24M10419+85#22429#22344
24M → 40K6724+43#22344#22301
40K → 25.2M338+25#22301#22276
25.2M → Finish5926+33#22276#22243
TOTALS16991417+282
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing